Skip to main content
Friday 13 November 2026 · 1904Z EGLL · KJFK · OMDB · VHHH Member log in →
Structure · 10 min study Members

Structure: ‘Modals of deduction’

Choose between must have, can’t have and may have as investigators weigh the evidence in a Learjet accident report.

Structure: ‘Modals of deduction’
FIG. 01 StructureArchive

Membership Required

You’ve reached the Members’ part of this briefing. The first part is free — Members read everything: every article, grammar activity, narration and dictation, plus the complete archive and the full Study zone — vocabulary decks, the Grammar Check and writing tasks.

Get Plus — €14.99/mo Go Pro — €34.99/mo Log in

Both unlock the full archive; Pro adds automated ICAO speaking assessment.

Already a member? Log in here